to "sex and the city's" carry bradshaw. beyonce. j. lo. and rihanna. all have taken a public plunge in their heels. >> i think women don't walk off the big toe properly. that makes the foot unstable. the higher the heel, the more instability. so, when in doubt, lower your heel height. >> reporter: what if you want to keep stepping out in your six-inch stiletto. enter miss j. gave me a lesson in how to avoid the footwear fiascos. >> do you walk on the heels or the feet or the balls? >> reporter: i think i walk on the balls. what's the biggest mistake that women make when walking in high heels? >> relying on the high heel to keep them steady. you have to navigate the shoe. >> reporter: most of all, he says, even if you don't stick the landing, what really matters is how you react when you're back on your feet. even if you fall? smile. >> if all else fails. >> all of that looks so painful. miss jay give me a little bit of advice. you don't walk with the weight on the back of your heel. we've done that, right? you're supposed to walk on the ball, like this